On Wed, May 12, 2021 at 03:46:11PM +0200, Jan Kara wrote: > diff --git a/mm/truncate.c b/mm/truncate.c > index 57a618c4a0d6..93bde2741e0e 100644 > --- a/mm/truncate.c > +++ b/mm/truncate.c > @@ -415,7 +415,7 @@ EXPORT_SYMBOL(truncate_inode_pages_range); > * @mapping: mapping to truncate > * @lstart: offset from which to truncate > * > - * Called under (and serialised by) inode->i_rwsem. > + * Called under (and serialised by) inode->i_rwsem and inode->i_mapping_rwsem. mapping->invalidate_lock, surely? And could we ask lockdep to assert this for us instead of just a comment? > * > * Note: When this function returns, there can be a page in the process of > * deletion (inside __delete_from_page_cache()) in the specified range. Thus > -- > 2.26.2 > >